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Finding the Fourth Proportional to 3,848,689.60, 5,773,552.80 and 1,325,118.40

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Solution

The fourth proportional to 3,848,689.60, 5,773,552.80 and 1,325,118.40 is: 1,987,856.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848,689.60 : 5,773,552.80 = 1,325,118.40 : x
  2. Step 2: Convert to fraction form
    3,848,689.60/5,773,552.80 = 1,325,118.40/x
  3. Step 3: Cross multiply
    3,848,689.60x = 5,773,552.80 × 1,325,118.40
  4. Step 4: Simplify right side
    3,848,689.60x = 7,650,641,048,651.52
  5. Step 5: Solve for x
    x = 7,650,641,048,651.52/3,848,689.60
  6. Step 6: Final answer
    x = 1,987,856.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.